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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

03 air test

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Old Feb 17, 2025 | 06:06 PM
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03 air test

I’ve been having a pretty serious no start problem and lack of power, when I got the truck I went ahead and put a new hpop in it (cnc fab) and was fine for over a year. So this last week I pulled it apart and did the air test. I went through the Ipr first and with 130 psi and leaving it hooked up for 15 minutes I didn’t hear anything, then I pulled the driver side valve cover and hooked up to the port on the oil rail and after a few seconds had air under the hpop cover. Is this normal or is that my leak. Sorry if this is a stupid question just want to be sure before I do anything I don’t need to do.
 
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Old Feb 17, 2025 | 06:15 PM
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Sounds like the IPR is leaking, or maybe you didn't command it closed .............
 
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